Write a C++ program evaluating a simple multiple-choice quiz and scoring responses.
Number of questions N, followed by correct answers and student answers.
Print the total score.
1 <= N <= 20
3 A B C A C C
Score: 2
Compares character inputs against a key array.
#include <iostream>
#include <vector>
int main() {
int n;
if (std::cin >> n) {
// Write your quiz system logic here
}
return 0;
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